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The scientific productivity of major world cities was the subject of a recent study. The study determined the number of scientific papers published between 1994 and 1997 by researchers from each of the 20 world cities, and is shown below. City Number of papers City Number of papers City 1City-23 2City-25 3City-19 4City-25 5City-9 6City-9 7City-19 8City-2 9City-10 10City-16 11City-18 12City-14 13City-27 14City-3 15City-20 16City-18 17City-11 18City-8 19City-9 city20- 22 Construct a 95% confidence interval for the average number of papers published in major world cities.
If research in the business/management area cannot be 100% scientific is there any use in doing it?Discuss this statement in class or in groups.
The beam is subjected to a maximum vertical shear force of 920 lb. Calculate the required spacing of wood screws if the allowable shear load on each screw is 250 lb.
Item weights in the CPI. The cost of buying a house (with the investment component removed) makes up about 22% of the CPI.
Q1.The life of cell batteries is normally distributed with a mean of 88.2 hours and a standard deviation of 15.5 hours. 93% of the batteries will last more than how many hours? (2 decimal places )
Plant B has a standard deviation of 150 model FX32's per day. Which of the plants would you prefer to manage? Explain why you would prefer that particular plant.
What is the probability that exactly two eastbound trains will arrive in the first 24 minutes and exactly three eastbound trains will arrive in the first 36 minutes?
a-1. Construct the corresponding relative frequency, cumulative frequency, and cumulative relative frequency distributions. b-1. How many of the cars got less than 25 mpg?
Next, propose the overall manner in which you would apply statistical thinking strategy to improve the end result of the selected project.
What is the probability and Determine a 99% confidence interval estimate of the mean mileage.
Make a decision – For the purpose of this discussion, you will make a conclusion based on the hypothetical results from Step 4. Be sure to include a recommendation on the effectiveness of the new drug based on the results.
Customers arrive at a counter in accordance with a Poisson process of density three arrivals per minute. (a) What is the expected number of arrivals per minute?
Construct a scatter plot of P-RFM and P-HELM. If drawing the plot by hand, use graph paper to ensure accuracy.
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